Word: uranian
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...cameras (as well as its other instruments) to reveal considerably more detail as the spacecraft draws closer to Uranus and finally swoops to within 66,000 miles of its surface on Jan. 24. Voyager's odyssey will not end there. Accelerated to 45,000 m.p.h. and rerouted by Uranian gravity, it will soar still farther away from the sun, encounter Neptune in 1989, then head out of the solar system on an endless journey to the stars...
...Science The universe, it seems, is filled with bubbles. Is there a fifth force of nature? Voyager finds a Uranian moon...
...five other satellites: Miranda, Ariel, Umbriel, Titania and Oberon. But that should change this summer when the International Astronomical Union meets to assign permanent names to new discoveries. The I.A.U. might have its work cut out for it. Astronomers think Voyager may soon spot as many as 18 more Uranian moons...
...Voyager swung behind Uranus, it bounced radio waves off the rings and discovered that they are quite different from those of Saturn, which contain an abundance of fine particles. The Uranian rings are made largely of dark "boulders," most of them more than a yard wide, that circle the planet once every eight hours. Many scientists believe they may be the remnants of a large moon that shattered in an ancient cataclysm...
...magnetic field also helped scientists calculate the length of a Uranian day. By detecting the changing radio emissions caused by the interaction of the field with the solar wind as the planet turns on its axis, the spacecraft established that Uranus rotates once approximately every 17 hours. The technique, explained Physicist James Warwick, can be likened to standing on a lawn and "feeling the water drops every time a sprinkler goes around." By tracking clouds in the atmosphere, Voyager discovered high-altitude winds moving around the planet at 220 m.p.h., more than twice as fast as they travel above...